function zhucebiao(){
			var youxiangad = document.getElementById("yourname1").value;
			var password = document.getElementById("password").value;
			var repassword = document.getElementById("repassword").value;
			var bokenicheng = document.getElementById("yourname").value;
			var like = document.getElementById("like").checked;
		
			if(youxiangad.length == 0){
				alert("邮箱地址不能为空!");
				return false;
			}
			
			if(password.length == 0){
				alert("登陆密码不能为空!");
				return false;
			}	
			
			if(repassword.length == 0){
				alert("重复密码不能为空!");
				return false;
			}	
			
			if(repassword != password){
				alert("密码不一致，请重新输入！");
				return false;
			}
			
			if(bokenicheng.length == 0){
				alert("博客昵称不能为空!");
				return false;
			}	
			
			if(like == false){
				alert("亲，请查看协议，谢谢!");
				return false;
			}
		}